Audio speaker



FIG. 1 is a perspective view of a audio speaker showing the new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top side view thereof;

FIG. 5 is a bottom side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof.

The broken lines show portions of the audio speaker that form no part of the claimed design. 

CLAIM The ornamental design for an audio speaker, as shown and described. 